<!doctype html>
<html>
<head>
	<meta charset="utf-8">
	<link rel="stylesheet" type="text/css" href="css/index.css">
</head>
<body>
<div class="test1"><span>点一下这里试试看</span>
<div class="test2">哈！我是隐藏的</div>
</div><p>这是文字</p>
</body>
</html>